baber/WOPTO huggingface dataset:
Patent GB-1408420-A (GB)
Title: Time division multiplexing system with overlapping messages
IPC: H04B3/54
Filed: 1973-02-07
Abstract: 1408420 Digital transmission; master and slave systems HUGHES AIRCRAFT CO 7 Feb 1973 [7 Feb 1972] 6053/73 Heading H4P In a two-way system comprising a central station and a plurality of remote stations having separate channels, i.e. transmission lines and/or frequencies for each direction of communication, the remote stations are divided into groups of similar transmission delay times, which groups are sequentially interrogated and responses received, during time intervals distinct for each group. The relative transmission delay times may be different from physical distance ratios due to differing transmission media. The arrangement may be applied to a radial or "common line" system. The groups are scanned in sequence, normally commencing with the group having the lowest delay, but other arrangements are envisaged; the sub-stations of any group may be addressed in any desired sequence. After the sub-stations of group 1 have been interrogated and their responses received at the central station, the next group is interrogated et seq. The substations of a given group may be interrogated at a periodicity substantially equal to twice the difference between time limits relevant to that group. The central station may include a digital computer which can provide system diagnosis, fault location &c. and the system may carry television, A.M. or F.M. broadcast signals. The central station may also include display-devices, paper tape machines and/or disc/drum memories known in the art.  The transmission system may include repeaters.
Patent GB-143659-A (GB)
Title: An improvement in or in connection with extrusion machines of the worm screw type
IPC: B30B11/24
Filed: 1919-03-12
Abstract: 143,659. Sizer, A. W. March 12, 1919. Extrusion machines.-Relates to screw extrusion machines, particularly for pressing meal in a cold state, and consists in forming or providing the casing A with a grooved portion F surrounding the back end of the screw B, such grooved portion extending up into the feed-shoot C. The grooved portion F may be formed as a plate having a lower portion curved to fit around the screw, as shown in Figs. 3 and 5; or it may be combined with a tubular grooved portion G, Fig. 7. Specification 26713/12 is referred to.
Patent GB-547609-A (GB)
Title: Apparatus for facilitating packing laundered articles and the like into bags or bag-like containers
IPC: D06F93/00
Filed: 1941-05-12
Abstract: 547,609. 'Packing. PACE, W. C. May 12, 1941, No. 6134. [Class 94 (i)] Apparatus for facilitating the packing of laundered articles or other goods comprises a tray on which the articles are arranged, means for moving the tray longitudinally, and a stripping-plate for retaining the articles when the tray moves and depositing them in a bag or on a wrapper. The tray 4, which is open at one end, is supported at its closed end 13 by carriage members 7 and is movable to and fro along horizontal rails 9 above a packing table 2. A stationary stripping-plate 5, located within the tray, is attached to two sliding rods 11 which pass through openings in the end wall 13 of the tray and are secured to a part 10 of the frame of the apparatus. A pneumatic cylinder 14, or suitable hand-operated mechanism, is provided for reciprocating the tray. In use, the articles are arranged on the tray, and a bag is drawn over the filled tray or a wrapper is placed on the table 2. The cylinder 14 is then operated to move the tray, and the plate 5 prevents the articles from moving and causes them to be deposited in the bag or on the wrapper. If desired, the tray may be provided with a lid or cover.
Patent GB-116732-A (GB)
Title: Improvements in and relating to Foundry Moulding.
Inventor: STRETTLES STEPHEN
IPC: B22C17/08
Filed: 1917-05-01
Abstract: 116,732. Strettles, S., and Lee, T. May 1, 1917. Moulding-machines; flasks; clamping. - A moulding-machine has a table 1 carried on supports 2. In the table is a wide opening 3 in which rest a pair of brackets 5 secured to. the table by bolts. A pattern plate 8 is also secured to the table, by bolts 7, Fig. 3. The brackets 5 serve as guides for sliding members 11, the upper ends 12 of which are adapted to support the moulding-box. These members 11 are connected by a bar to which is pivoted a link 13 also pivoted to a lever on a spindle 15 which carries at one end a lever 16 by means of which the box can be raised or lowered. The upper flask b is carried by trunnions in a frame 22 rotatably mounted on a spindle 17 which can be raised or lowered by a lever 21 connected to it by a link 19. The flask can thus be placed in the frame in the position shown in dotted lines in Fig. 2, swung round over the lower flask, turned over, and lowered on to the lower one. The edges of the flasks are bevelled outwards and inwards alternately, as shown in Fig. 3, so that, when two flasks are brought together, the sand fans come into contact before the bevelled edge of the flasks.
Patent GB-265793-A (GB)
Title: Improvements in beer and like taps
IPC: B67D3/04
Filed: 1926-03-05
Abstract: 265,793. Weightman, J. S. March 5, 1926. Lift valves; casings; hammering pads.-A twopart tap for use in drawing off beer &c. from casks &c. comprises an inner casing part 10 containing a spring-closed valve 17 with a separate guide member 22, and an outer part 30 provided with an angular discharge branch 31 and carrying the screwed operating rod 40 for opening the valve. The two parts are secured together by a union nut 33. To facilitate hammering the tapered inner part 10 into the cask &c. the end 12 can be fitted with a screwed detachable hammering head or pad 46. The nut 37 of the screwed rod 40 is retained in the outer part, as shown, by the gland nut 38.
Patent GB-809452-A (GB)
Title: Oxidation of fatty acids
IPC: C11C3/00
Filed: 1955-09-09
Abstract: A mono-carboxylic acid and a dicarboxylic acid are produced by adding a dihydroxy saturated higher fatty acid, produced by the partial oxidation of an ethylenically unsaturated higher fatty acid as hereinafter defined, to a reaction liquid comprising a quantity of said unsaturated acid undergoing oxidation by reaction with oxygen, the dihydroxy acid being added in small quantities such that the concentration thereof in the reaction liquid is never high enough to stop the oxidation reaction.  The unsaturated higher fatty acid referred to above is a mono-carboxylic acid containing at least 10, preferably not more than 24, carbon atoms, and also containing at least one ethylenically unsaturated linkage, there being no ethylenic linkages conjugated with the carbonyl of the carboxylic acid radical. Examples of such acids are oleic acid, palmitoleic, petroselinic, erucic and linoleic acids.  The acids may be in commercially pure form or in the form of materials containing such acids, such as foots oil.  The amount of dihydroxy acid added initially may be from 1 to 5 per cent by weight and subsequent additions may be successively larger until, after the reaction has been under way for some time, the concentration of dihydroxy acid in the reaction liquid is about 10 per cent.  The oxidation during the addition of the dihydroxy acid may be carried out under the conditions as regards nature and concentration of catalyst, temperature and the ratio of unsaturated acid to solvent as described in Specification 809,451 except that any suitable solvent may be present in the reaction liquid, such as benzene or propanol.  Advantageously the oxidation is carried out until 50 to 95 per cent, preferably 60 to 80 per cent, of the unsaturated fatty acid has been oxidized.  The solvent may be removed by distillation, together with acetic and propionic acids formed when propanol is used as solvent, any esters present are saponified, as by refluxing with aqueous sodium hydroxide, the mixture is then acidified, e.g. with sulphuric acid, and the acidified mixture is extracted with ether.  The ethersoluble carboxylic acids are reacted with ethyl or methyl alcohol and separated by fractional distillation under sub-atmospheric pressure.  Alternatively, after distilling off the ether from the extract, the monocarboxylic acid is fractionally distilled from the mixture and the dicarboxylic acid is recovered by extracting the residue with hot water followed by cooling or evaporation to crystallise the acid therefrom.  In an example, technical oleic acid in solution in propanol in the presence of cobalt naphthenate is oxidized by bubbling air through the liquid maintained at 81 DEG  C. and after the oxidation has begun, 9,10-dihydroxystearic acid is added in small increments over the entire reaction period in such a manner that the concentration thereof in the mixture never exceeds 5 per cent by weight.  After 140 hours the mixture is worked up to obtain pelargonic acid and azeleic acid.
Patent GB-693751-A (GB)
Title: A method of and device for weaving fabrics
IPC: D03D47/00
Filed: 1950-03-13
Abstract: 693,751. Loom picking mechanism. CESKOSLOVENSKE TEXTILNI ZAVODY NARODNI PODNIK, and SVATY, V. March 13, 1950 '[April 2, 1949; Dec. 16, 1949; Feb. 21, 1950; Feb. 25, 1950], No. 6217/50. Class 142(ii) A weft thread which is wound off in measured lengths from a stationary storage spool is inserted into a conventional warp shed in a weaving loom by means of an air jet surrounding and entraining said weft. The jet is produced by releasing a measured quantity of compressed air through a nozzle. In one embodiment (Fig. 1) weft thread 2 from a bobbin 1 is wound off in predetermined lengths by an apparatus frictionally driven by the loom main shaft 8 and having a pair of rollers 4, 5. The lower roller 4 has a rought surface and its circumference approximates to the reed width of the fabric. The thread then passes through a pair of tensioning jaws 10, 11 intermittently operated from a cam disc 15 and finally through an axial cavity in a valve body 17 of an air nozzle, which has a mouthpiece 19 and a blade wheel 20 giving rotation to an air jet. Air is fed through a throttle 22 to a chamber 21 which is adjustable in volume to operate one pick and thence through the mouthpiece 19 as the valve-body 17 is drawn back by a further cam disc 27 through the medium of a bell crank 24. At the same time the tensioning jaws 10, 11 are opened by the disc 15 and the issuing air entrains the air and carries it through the shed. In a modified form of nozzle a piston valve operated by a cam controls the supply of air for entraining the thread. The thread passes between two retracting rollers at least one of which is provided with a recess for releasing the thread at the moment of picking. A modified form of winding-off apparatus (Fig. 9) comprises a drum 51 on a shaft 52 geared to the loom mainshaft. Projections 65 on the drum carry the weft thread 74 round from a bobbin under a wheel 69 having a projection on its circumference for braking the thread at predetermined intervals as the thread is disengaged from the drum projections 65 by extensions 66 on a casting-off disc 63. The disc is driven at twice the speed of the drum by sun and planet gearing 58-61-62. Instead of a disc, a stationary ramp or a spring-biased lever may be used for casting off a required length of thread. A further embodiment of a winding off mechanism is shown in Fig. 14. Thread from a bobbin 96 is fed over a conical roller and under a braking wheel 95 and is interwoven with round ropes rotating on grooved disc 91, 92.
Patent GB-717611-A (GB)
Title: Improvements in and relating to solutions of furano chromones
IPC: C07D493/04
Filed: 1952-03-11
Abstract: The invention comprises a stable aqueous solution of a furanochromone containing a cyclic hydroxycarboxylic or hydroxysulphonic acid or a water-soluble salt thereof.  The furanochromone may be added to an aqueous solution of the salt of the acid, or the furanochromone may be added to molten acid and the cooled melt then dissolved in water. Acids mentioned are salicylic, hydroxycinnamic, tropic, hydroxybenzenemono - or di - sulphonic, naphthalenesulphonic and sulphosalicylic acids and their functional derivatives.  The salts may be those of the alkali metals or alkaline earths, the ammonium salts, magnesium salts and amino compounds including quaternary compounds.  In examples (1) 2-methyl-5 : 8-dimethoxy-6 : 7-furano-chromone is dissolved with heating in an aqueous solution of sodium salicylate, and the solution is filled into ampoules and sterilized; (2) a furanochromone as in (1) is introduced into a melt of 2-hydroxy-5-sulpho-benzoic acid.  The cooled melt is dissolved in water.ALSO:The invention comprises a stable aqueous solution (suitable for injection) of a furanochromone, containing a cyclic hydroxycarboxylic or hydroxysulphonic acid or a water-soluble salt thereof.  The furanochromone may be added to an aqueous solution of the salt of the acid, or it may be added to the molten acid and the cooled melt then dissolved in water.  Acids mentioned are salicylic, hydroxycinnamic, tropic, hydroxybenzenemono- or di-sulphonic, naphthalenesulphonic and sulpho-salicylic acids and their functional derivatives.  The salts may be those of the alkali metals or alkaline earths, the ammonium salts, magnesium salts, and amino compounds including quaternary compounds.  In examples (1) 2-methyl-5-:8-dimethoxy-6:7-furanochromone is dissolved with heating in an aqueous solution of sodium salicylate and the solution is filled into ampoules and sterilized; (2) the same furanochromone as in (1) is introduced into a melt of 2-hydroxy-5-sulpho-benzoic acid. The cooled melt is dissolved in water.
Patent GB-561293-A (GB)
Title: Acid recovery process
IPC: C01B17/92
Filed: 1942-05-08
Abstract: 561,293. Recovering sulphuric acid. SHELL DEVELOPMENT CO. May 8,1942, No. 6237. Convention date, March 29, 1941. Drawings to Specification. [Class 1 (ii)] Sulphuric acid containing organic impurities, such as spent catalyst used in the alkylation of hydrocarbons, is promptly diluted, preferably at low temperature, causing separation of part of the organic matter. The separated acid is concentrated in three stages; firstly at a temperature (120-140‹ C.) below the foaming point, secondly at a temperature (160-185‹ C.) below that at which substantial reaction with the remaining organic contaminants takes place, and finally at the boiling point (e.g. 210-240‹ C.) of acid of the required concentration.
Patent GB-577904-A (GB)
Title: Improvements in gun turrets
IPC: F41G5/04
Filed: 1943-04-19
Abstract: 577,904. Gun mountings; sights. ROSE, A. G., NICHOLLS, K. H., and ROSE BROS. (GAINSBOROUGH), Ltd. April 19, 1943, No. 6280. [Classes 92 (i) and 92 (ii)] The sighting arm associated with the guns 11 in a gun turret moves about an axis which is parallel to the elevating axis of the guns and about an axis coincident with the training axis, the movements of the arm serving to operate means, such as valves, which move in synchronism with the guns or gun platform and which actuate means for moving the guns through an angle substantially equal to that traversed by the sighting arm. In the construction shown, the sight 35 is carried by an arm 33 pivotally mounted at 34 on a member 36, the latter being pivotally mounted in the main framework of an aircraft turret for rotation about an axis coincident with training axis of the guns 11. Movement of the member 36 by the movement of the sight actuates, through the medium of an arm 37 and link 38, a valve 41 attached to a bracket 42 on the turret, the valve when thus operated controlling the operation of an oil motor 43 driving the turret platform 13. The arm 33 extends beyond pivot 34 the extension being connected to a link 31 having its lower end connected to the arm 27 of a two-armed lever 26, 27, pivoted in a bearing 29 secured to platform 13. The other arm 26 is connected to a link 24 which is also connected to a frame 23 freely mounted on the common axis of the guns. The frame in turn is connected by a link 22 to a valve 19 attached to one of the gun carriers 16, the valve serving to control the movements of two elevating motors, one for each gun, housed in bearings 18 which form part of the bearing members 12 about which the guns are elevated. Thus, movement of sighting arm 33 about axis 34 serves to elevate or depress the guns through the required angle. The valves 19, 41, may be of the construction described in Specification 577,922, [Group XXIX], and the elevating motors may be of the construction described in Specifications 576,621. Specifications 577,907, 577,908, and 577,919 also are referred to.
Patent GB-882202-A (GB)
Title: Fuel injection device for gas turbines
Inventor: GUTTER GERHARD
IPC: F23R3/38
Filed: 1958-02-27
Abstract: 882,202. Gas-turbine plants. ENTWICKLUNGSBAU PIRNA VEB. Feb. 27, 1958, No. 6322/58. Class 110 (3). [Also in Group XI] A device for injecting liquid and colloidal fuels into the combustion chamber 7 of a gas or hot air turbine comprises a wheel 4 mounted on a shaft 3 and having on one side an annular chamber 5 fed with fuel through channels 2 and on the other side a surface 6a, 6b which diverges from the axis of rotation and along which the fuel flows to be thrown from the edge thereof in atomized form. The fuel passes along ducts 8 from one side of the wheel to the other. The ducts 8 and the channels 2 also diverge from the axis of rotation. Air is supplied to the combustion chamber through an annular swirl chamber 9 and through an annular body 10 having an outlet 11 leading directly to the combustion chamber and a second outlet 12 leading to a gap 13 between the fuel discharge surface 6a, 6b of the wheel and the body 10.
Patent GB-955579-A (GB)
Title: Improvements in or relating to container closures comprising lids and resilient sealing rings
IPC: B65D55/08
Filed: 1962-02-20
Abstract: 955,579. Stoppers. LUBECAWERKE G.m.b.H. Feb. 20, 1962 [March 20, 1961], No. 6523/62. Heading B8T. A sealing ring 4 of rubber &c. is compressed between the edge 3 of a container 1 and the bent-over portion of its lid 2 on assembly of the lid, and one or more tongues 11 extend from the ring through a gap 13. On pulling a tongue, the part 8 of the ring tears and the part 7 is drawn through the gap thereby enabling the lid to be lifted from the can. In the modification of Fig. 4, the ring is stuck or shrunk on to the edge of the can and a sealing insert 19 is provided; in a further modification the edge of the can is hook-shaped and engages a groove in the ring. Alternatively, the sealing ring may be secured to the lid, e.g. by adhesive or by rolling over the edge of the lid, before the lid is formed into engagement with the can.
Patent GB-1299963-A (GB)
Title: Synthetic vascular graft and method for manufacturing same
Inventor: LIEBIG WILLIAM J
IPC: A61F2/06
Filed: 1970-02-11
Abstract: 1299963 Synthetic vascular graft MEADOX MEDICALS Inc 11 Feb 1970 [10 Oct 1969] 6585/70 Heading A5R [Also in Division D1] A synthetic vascular graft comprises an elongated tube of warp-knitted fine denier polyester fibre having stitches providing porosity sufficient for optimum tissue ingrowth characteristics while maintaining sufficient control of porosity to prevent haemorrhage when the graft is implanted. The graft, which may be. bifurcated as in Fig. 2, is preferably made from 56 gauge fibre on a double needle bar Raschel machine and has tricot stitches or lock stitches, so it will not ravel or fray when sutured. Crimping to give convolutions enhances the ability of the graft to extend or contract. When first fabricated, the exterior of the graft is rib-knitted whilst the interior is relatively smooth. Consequently the structure is turned inside-out so that the interior surface comprises longitudinally extending ribs. This tends to shrink the fabric, equallise stresses and aid the flow of blood through the graft.
Patent GB-548395-A (GB)
Title: Improvements relating to float-operated valves feeding water to tanks and cisterns
IPC: F16K31/26
Filed: 1941-05-23
Abstract: 548,395. Float-operated valves. MOTTON, G. May 23, 1941, No. 6667. [Class 135] The supply nozzle 3 of a float-operated supply valve is so fitted with a tube 10 as to leave an annulus 16 for trapping dirt, water passing into the tube through an aperture 12, the effective area of which may be adjusted by a screw 15. The tube has arms 14, and may have an exterior sleeve of wire mesh or gauze.
Patent GB-439456-A (GB)
Title: Improvements in wet starch systems
IPC: C08B30/04
Filed: 1935-03-04
Abstract: In the wet method of manufacturing starch from maize, the mill starch of high density is treated for the recovery of starch and gluten, the resultant water being used for steeping the maize, while the mill starch of low density is returned to the separating operations without removal of the starch and gluten therefrom. The material may be subjected to germ, coarse slop and fine slop separations, the mill starch from the fine slop stage being returned to the germ wash and the first of the series of coarse slop washes.  Specifications 277,572, [Class 121], 419,286, and 425,936 are referred to.
Patent GB-1137857-A (GB)
Title: Improvements in making viscose rayon
IPC: D01F2/08
Filed: 1966-02-16
Abstract: 1,137,857. Making viscose rayon. RAYONIER Inc. 16 Feb., 1966 [20 July, 1965], No. 6832/66. Heading B5B. Viscose rayon filaments having an average conditioned tenacity of 4.3 to 6.5 g.p.d., a wet modulus of 1 to 2 g.p.d., a wet tenacity of 3 to 5 g.p.d., an elongation of from 8 to 12 per cent, and a solubility in aqueous 6.5% sodium hydroxide solution of less than 4.5%, which filaments have cross-sectional shapes which are mostly smoothly curved and have a protuberance on one side. They may be made by preparing a viscose from cellulose scanthate of 450 to 800 D.P., which viscose has a gamma number of 40 to 90, an NaCl salt index of 7 to 12 and contains a regeneration retarding modifier, extruding the viscose into a coagulating bath maintained at 18 to 30‹ C., which bath contains 3 to 9% by weight H 2 SO 4 , 7 to 18% of Na 2 SO 4 , 0.2 to 2% formaldehyde and 1 to 6% by weight of zinc sulphate. The coagulated filaments are stretched to such an extent that they are elongated by 110 to 250% . their length before being stretched, their stretching at this stage prior to their regeneration being at least 60% of the total stretch which they are to receive. Thereafter and while they are being completely regenerated in contact with a regenerating liquid at 60‹ to 100‹ C. they are stretched by at least an additional 30% in length, but by not more than 40% of the total stretch or beyond filament damage. The regenerating liquid is preferably a 0.5 to 5.0% by weight aqueous sulphuric acid solution. The modifier is preferably a mixture of dimethylamine and polyethylene glycol, preferably in the proportions of 1.0 to 30% by weight and 0.5 to 2.5% by weight respectively. The spin bath preferably contains formaldehyde and zinc sulphate (the proportion of the latter being expressed as the anhydrous salt) in the proportions shown in the shaded area of Fig. 1. The spin bath may contain 0.01 to 0.1% by weight of a surface active agent such as lauryl pyridinium chloride.
Patent GB-1211003-A (GB)
Title: Improvements in or relating to refuse collecting vehicles
Inventor: GREENLAND JAMES FREDERICK
IPC: B65F3/20
Filed: 1967-02-13
Abstract: 1,211,003. Refuse vehicles. GLOVER WEBB & LIVERSIDGE Ltd. 13 Feb., 1968 [13 Feb., 1967], No. 6839/67. Heading B8F. Refuse tipped into a hopper 2 is transferred through an aperture 24 to the main body 4 of a refuse vehicle by an hydraulically operated packing plate 6 pivoted about its forward edge 8 and having side plates 14 and a rear plate 12, which plates bear against sealing strips 22, to prevent the trapping of refuse therebehind. The aperture 24 may be varied in cross-section by spring biased plate (not shown) operated by the pressure of the refuse displaced by the packing plate or by plates (not shown) synchronized with the packing plate.